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Tap water quality report

Frankfort, KY

EPA monitoring detected 15 contaminants across the 3 water suppliers serving Frankfort. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

3
water suppliers
61,946
people served
15
contaminants found
Kentucky rankings Lead in Kentucky PFAS in Kentucky

What was found in Frankfort's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
890 µg/L 8.9%
of the EPA limit 10000 µg/L
Main supplier: FRANKFORT PLANT BOARD · 52,153 people · 2019
1/3 SYR4
Fluoride
860 µg/L 22%
of the EPA limit 4000 µg/L
Main supplier: FRANKFORT PLANT BOARD · 52,153 people · 2019
1/3 SYR4
Copper
328.4 µg/L 25%
of the EPA limit 1300 µg/L
Main supplier: FRANKFORT PLANT BOARD · 52,153 people · 2019
Highest in the city: 384.5 µg/L — FARMDALE WATER DISTRICT · 8,203 people · 2017
3/3 SYR4
TTHM
74.4 µg/L 93%
of the EPA limit 80 µg/L
Main supplier: FRANKFORT PLANT BOARD · 52,153 people · 2019
3/3 SYR4
Total Haloacetic Acids (HAA5)
67 µg/L 112%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
Main supplier: FRANKFORT PLANT BOARD · 52,153 people · 2019
3/3 SYR4
Barium
25.65 µg/L 1.3%
of the EPA limit 2000 µg/L
Main supplier: FRANKFORT PLANT BOARD · 52,153 people · 2019
1/3 SYR4
Lead
10.6 µg/L 71%
of the EPA limit 15 µg/L
Main supplier: FRANKFORT PLANT BOARD · 52,153 people · 2019
Highest in the city: 12.8 µg/L — ELKHORN WATER DISTRICT · 1,590 people · 2018
3/3 SYR4
Combined Radium (-226 And -228)
2.698 pCi/L 54%
of the EPA limit 5 pCi/L
Main supplier: FRANKFORT PLANT BOARD · 52,153 people · 2017
1/3 SYR4
Arsenic
2 µg/L 20%
of the EPA limit 10 µg/L
Main supplier: FRANKFORT PLANT BOARD · 52,153 people · 2019
1/3 SYR4
Mercury
0.5000 µg/L 25%
of the EPA limit 2 µg/L
Main supplier: FRANKFORT PLANT BOARD · 52,153 people · 2019
1/3 SYR4
Chromium
0.3000 µg/L 0.3%
of the EPA limit 100 µg/L
Main supplier: FRANKFORT PLANT BOARD · 52,153 people · 2019
1/3 SYR4
6:2 Fts
0.0064 µg/L
No EPA limit set
Main supplier: FRANKFORT PLANT BOARD · 52,153 people · 2025
Highest in the city: 0.0165 µg/L — FARMDALE WATER DISTRICT · 8,203 people · 2023
2/3 UCMR-5
Pfpea
0.0049 µg/L
No EPA limit set
Highest in the city: FARMDALE WATER DISTRICT · 8,203 people · 2023
1/3 UCMR-5
Pfhxa
0.0036 µg/L
No EPA limit set
Highest in the city: FARMDALE WATER DISTRICT · 8,203 people · 2023
1/3 UCMR-5
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
Main supplier: FRANKFORT PLANT BOARD · 52,153 people · 2025
3/3 LCR
Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Frankfort

SupplierPopulation served
FRANKFORT PLANT BOARD 52,153
FARMDALE WATER DISTRICT 8,203
ELKHORN WATER DISTRICT 1,590

Frequently asked questions about Frankfort tap water

Is Frankfort tap water safe to drink?

EPA testing detected 15 contaminants in the water serving Frankfort. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Frankfort?

3 public water suppliers report drinking-water monitoring for Frankfort, Kentucky to the EPA. Each is listed above with its population served.

What contaminants are in Frankfort's water?

The contaminants EPA monitoring detected in Frankfort include Nitrate, Fluoride, Copper, TTHM, Total Haloacetic Acids (HAA5). The full list, with the level at the main supplier and the data source, is in the table above.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.